Question

Exercitiul 4,va rog frumos
dau coroana! urgent

Answer 1

( fog) (1) = f  ( g(1) )  = f( -1) = ( -1) ² - 4( -1) + 2 = 1 + 4 +2 = 7
g(1 ) = 2 - 3· 1 = 2- 3 = -1 
( gof ) (2) = g (  f(2)  ) = g( -2) = 2 - 3 ·( -2)  = 2 + 6 = 8
                  f(2) = 2² - 4·2 + 2 = 4  -  8 + 2 = - 2